OSB 3, also known as Oriented Strand Board 3, is a specific grade or category of OSB boards designed for use in applications where higher moisture resistance and durability are required. It is often used in construction projects where the boards may be exposed to damp conditions, such as roofing, wall cladding, and flooring applications in wet areas.
| 244 x 122 RB |
9mm
15mm
18mm
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| 244 x 59.5 T&G |
12mm
15mm
18mm
22mm
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Here are some features and specifications of OSB 3:
Moisture resistance: OSB 3 boards are designed to provide higher moisture resistance than standard OSB 2 boards. They are suitable for temporary exposure to moisture and are resistant to rain and humid environments.
Type of adhesive: OSB 3 is often produced with special types of adhesives, such as phenolic resin adhesive, which enhance moisture resistance and make the boards more durable.
Thickness and size: OSB 3 is available in various thicknesses and sizes, making it suitable for a range of construction applications.
Strength: It retains the strength and stiffness properties characteristic of OSB boards, making it suitable for construction applications.
Common applications of OSB 3 include use as roofing, facade cladding, underlayment, flooring in bathrooms and kitchens, and other situations where the boards may be exposed to humidity or temporary wet conditions. It is important to note that OSB 3 should not be permanently exposed to prolonged water or moisture, as it may eventually degrade if submerged in water for an extended period. For such cases, other water-resistant materials such as fiber cement boards or special moisture-resistant drywall are recommended.